libarchive up to 3.2.0 ISO Parser integer overflow

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in libarchive up to 3.2.0. Affected is an unknown function of the component ISO Parser. Performing a manipulation results in integer overflow. This vulnerability is reported as CVE-2016-5844. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in libarchive up to 3.2.0 (File Compression Software). This affects an unknown functionality of the component ISO Parser. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on availability. The summary by CVE is:

Integer overflow in the ISO parser in libarchive before 3.2.1 allows remote attackers to cause a denial of service (application crash) via a crafted ISO file.

The weakness was disclosed 09/21/2016 by Hanno Bock (Website). It is possible to read the advisory at rhn.redhat.com. This vulnerability is uniquely identified as CVE-2016-5844 since 06/23/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 95367 (SUSE SLED12 / SLES12 Security Update : libarchive (SUSE-SU-2016:2911-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 236088 (Red Hat Update for libarchive (RHSA-2016:1850)).

Upgrading to version 3.2.1 eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (95367) and SecurityFocus (BID 91808†). The entries VDB-80763, VDB-88027, VDB-90247 and VDB-90422 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 95367
Nessus Name: SUSE SLED12 / SLES12 Security Update : libarchive (SUSE-SU-2016:2911-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 15621
OpenVAS Name: Amazon Linux Local Check: alas-2016-743
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: libarchive 3.2.1
Patch: github.com

Timelineinfo

06/23/2016 🔍
06/24/2016 +1 days 🔍
09/21/2016 +89 days 🔍
09/21/2016 +0 days 🔍
09/22/2016 +1 days 🔍
11/25/2016 +64 days 🔍
11/28/2016 +3 days 🔍
09/19/2022 +2121 days 🔍

Sourcesinfo

Product: github.com

Advisory: RHSA-2016:1844
Researcher: Hanno Bock
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-5844 (🔍)
GCVE (CVE): GCVE-0-2016-5844
GCVE (VulDB): GCVE-100-91827

OVAL: 🔍

SecurityFocus: 91808 - libarchive CVE-2016-5844 Denial Of Service Vulnerability
SecurityTracker: 1036173

See also: 🔍

Entryinfo

Created: 09/22/2016 09:23
Updated: 09/19/2022 14:35
Changes: 09/22/2016 09:23 (67), 04/22/2019 18:53 (14), 09/19/2022 14:35 (6)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!